dnl Copyright (c) 2014, Red Hat Inc. All rights reserved.

dnl DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

dnl

dnl This code is free software; you can redistribute it and/or modify it

dnl under the terms of the GNU General Public License version 2 only, as

dnl published by the Free Software Foundation.

dnl

dnl This code is distributed in the hope that it will be useful, but WITHOUT

dnl ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

dnl FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

dnl version 2 for more details (a copy is included in the LICENSE file that

dnl accompanied this code).

dnl

dnl You should have received a copy of the GNU General Public License version

dnl 2 along with this work; if not, write to the Free Software Foundation,

dnl Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

dnl

dnl Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

dnl or visit www.oracle.com if you need additional information or have any

dnl questions.

dnl

dnl 

dnl Process this file with m4 aarch64_ad.m4 to generate the arithmetic

dnl and shift patterns patterns used in aarch64.ad.

dnl

// BEGIN This section of the file is automatically generated. Do not edit --------------

define(`BASE_SHIFT_INSN',

`

instruct $2$1_reg_$4_reg(iReg$1NoSp dst,

                         iReg$1 src1, iReg$1 src2,

                         immI src3, rFlagsReg cr) %{

  match(Set dst ($2$1 src1 ($4$1 src2 src3)));

  ins_cost(1.9 * INSN_COST);

  format %{ "$3  $dst, $src1, $src2, $5 $src3" %}

  ins_encode %{

    __ $3(as_Register($dst$$reg),

              as_Register($src1$$reg),

              as_Register($src2$$reg),

              Assembler::$5,

              $src3$$constant & 0x3f);

  %}

  ins_pipe(ialu_reg_reg_shift);

%}')dnl

define(`BASE_INVERTED_INSN',

`

instruct $2$1_reg_not_reg(iReg$1NoSp dst,

                         iReg$1 src1, iReg$1 src2, imm$1_M1 m1,

                         rFlagsReg cr) %{

dnl This ifelse is because hotspot reassociates (xor (xor ..)..)

dnl into this canonical form.

  ifelse($2,Xor,

    match(Set dst (Xor$1 m1 (Xor$1 src2 src1)));,

    match(Set dst ($2$1 src1 (Xor$1 src2 m1)));)

  ins_cost(INSN_COST);

  format %{ "$3  $dst, $src1, $src2" %}

  ins_encode %{

    __ $3(as_Register($dst$$reg),

              as_Register($src1$$reg),

              as_Register($src2$$reg),

              Assembler::LSL, 0);

  %}

  ins_pipe(ialu_reg_reg);

%}')dnl

define(`INVERTED_SHIFT_INSN',

`

instruct $2$1_reg_$4_not_reg(iReg$1NoSp dst,

                         iReg$1 src1, iReg$1 src2,

                         immI src3, imm$1_M1 src4, rFlagsReg cr) %{

dnl This ifelse is because hotspot reassociates (xor (xor ..)..)

dnl into this canonical form.

  ifelse($2,Xor,

    match(Set dst ($2$1 src4 (Xor$1($4$1 src2 src3) src1)));,

    match(Set dst ($2$1 src1 (Xor$1($4$1 src2 src3) src4)));)

  ins_cost(1.9 * INSN_COST);

  format %{ "$3  $dst, $src1, $src2, $5 $src3" %}

  ins_encode %{

    __ $3(as_Register($dst$$reg),

              as_Register($src1$$reg),

              as_Register($src2$$reg),

              Assembler::$5,

              $src3$$constant & 0x3f);

  %}

  ins_pipe(ialu_reg_reg_shift);

%}')dnl

define(`NOT_INSN',

`instruct reg$1_not_reg(iReg$1NoSp dst,

                         iReg$1 src1, imm$1_M1 m1,

                         rFlagsReg cr) %{

  match(Set dst (Xor$1 src1 m1));

  ins_cost(INSN_COST);

  format %{ "$2  $dst, $src1, zr" %}

  ins_encode %{

    __ $2(as_Register($dst$$reg),

              as_Register($src1$$reg),

              zr,

              Assembler::LSL, 0);

  %}

  ins_pipe(ialu_reg);

%}')dnl

dnl

define(`BOTH_SHIFT_INSNS',

`BASE_SHIFT_INSN(I, $1, ifelse($2,andr,andw,$2w), $3, $4)

BASE_SHIFT_INSN(L, $1, $2, $3, $4)')dnl

dnl

define(`BOTH_INVERTED_INSNS',

`BASE_INVERTED_INSN(I, $1, $2, $3, $4)

BASE_INVERTED_INSN(L, $1, $2, $3, $4)')dnl

dnl

define(`BOTH_INVERTED_SHIFT_INSNS',

`INVERTED_SHIFT_INSN(I, $1, $2w, $3, $4, ~0, int)

INVERTED_SHIFT_INSN(L, $1, $2, $3, $4, ~0l, long)')dnl

dnl

define(`ALL_SHIFT_KINDS',

`BOTH_SHIFT_INSNS($1, $2, URShift, LSR)

BOTH_SHIFT_INSNS($1, $2, RShift, ASR)

BOTH_SHIFT_INSNS($1, $2, LShift, LSL)')dnl

dnl

define(`ALL_INVERTED_SHIFT_KINDS',

`BOTH_INVERTED_SHIFT_INSNS($1, $2, URShift, LSR)

BOTH_INVERTED_SHIFT_INSNS($1, $2, RShift, ASR)

BOTH_INVERTED_SHIFT_INSNS($1, $2, LShift, LSL)')dnl

dnl

NOT_INSN(L, eon)

NOT_INSN(I, eonw)

BOTH_INVERTED_INSNS(And, bic)

BOTH_INVERTED_INSNS(Or, orn)

BOTH_INVERTED_INSNS(Xor, eon)

ALL_INVERTED_SHIFT_KINDS(And, bic)

ALL_INVERTED_SHIFT_KINDS(Xor, eon)

ALL_INVERTED_SHIFT_KINDS(Or, orn)

ALL_SHIFT_KINDS(And, andr)

ALL_SHIFT_KINDS(Xor, eor)

ALL_SHIFT_KINDS(Or, orr)

ALL_SHIFT_KINDS(Add, add)

ALL_SHIFT_KINDS(Sub, sub)

dnl

dnl EXTEND mode, rshift_op, src, lshift_count, rshift_count

define(`EXTEND', `($2$1 (LShift$1 $3 $4) $5)')

define(`BFM_INSN',`

// Shift Left followed by Shift Right.

// This idiom is used by the compiler for the i2b bytecode etc.

instruct $4$1(iReg$1NoSp dst, iReg$1 src, immI lshift_count, immI rshift_count)

%{

  match(Set dst EXTEND($1, $3, src, lshift_count, rshift_count));

  // Make sure we are not going to exceed what $4 can do.

  predicate((unsigned int)n->in(2)->get_int() <= $2

            && (unsigned int)n->in(1)->in(2)->get_int() <= $2);

  ins_cost(INSN_COST * 2);

  format %{ "$4  $dst, $src, $rshift_count - $lshift_count, #$2 - $lshift_count" %}

  ins_encode %{

    int lshift = $lshift_count$$constant, rshift = $rshift_count$$constant;

    int s = $2 - lshift;

    int r = (rshift - lshift) & $2;

    __ $4(as_Register($dst$$reg),

  %}

  ins_pipe(ialu_reg_shift);

%}')

BFM_INSN(L, 63, RShift, sbfm)

BFM_INSN(I, 31, RShift, sbfmw)

BFM_INSN(L, 63, URShift, ubfm)

BFM_INSN(I, 31, URShift, ubfmw)

dnl

// Bitfield extract with shift & mask

define(`BFX_INSN',

`instruct $3$1(iReg$1NoSp dst, iReg$1 src, immI rshift, imm$1_bitmask mask)

%{

  match(Set dst (And$1 ($2$1 src rshift) mask));

  ins_cost(INSN_COST);

  format %{ "$3 $dst, $src, $mask" %}

  ins_encode %{

    int rshift = $rshift$$constant;

    long mask = $mask$$constant;

    int width = exact_log2(mask+1);

    __ $3(as_Register($dst$$reg),

  %}

  ins_pipe(ialu_reg_shift);

%}')

BFX_INSN(I,URShift,ubfxw)

BFX_INSN(L,URShift,ubfx)

// We can use ubfx when extending an And with a mask when we know mask

// is positive.  We know that because immI_bitmask guarantees it.

instruct ubfxIConvI2L(iRegLNoSp dst, iRegIorL2I src, immI rshift, immI_bitmask mask)

%{

  match(Set dst (ConvI2L (AndI (URShiftI src rshift) mask)));

  ins_cost(INSN_COST * 2);

  format %{ "ubfx $dst, $src, $mask" %}

  ins_encode %{

    int rshift = $rshift$$constant;

    long mask = $mask$$constant;

    int width = exact_log2(mask+1);

    __ ubfx(as_Register($dst$$reg),

  %}

  ins_pipe(ialu_reg_shift);

%}

// Rotations

define(`EXTRACT_INSN',

`instruct extr$3$1(iReg$1NoSp dst, iReg$1 src1, iReg$1 src2, immI lshift, immI rshift, rFlagsReg cr)

%{

  match(Set dst ($3$1 (LShift$1 src1 lshift) (URShift$1 src2 rshift)));

  predicate(0 == ((n->in(1)->in(2)->get_int() + n->in(2)->in(2)->get_int()) & $2));

  ins_cost(INSN_COST);

  format %{ "extr $dst, $src1, $src2, #$rshift" %}

  ins_encode %{

    __ $4(as_Register($dst$$reg), as_Register($src1$$reg), as_Register($src2$$reg),

            $rshift$$constant & $2);

  %}

  ins_pipe(ialu_reg_reg_extr);

%}

')dnl

EXTRACT_INSN(L, 63, Or, extr)

EXTRACT_INSN(I, 31, Or, extrw)

EXTRACT_INSN(L, 63, Add, extr)

EXTRACT_INSN(I, 31, Add, extrw)

define(`ROL_EXPAND', `

// $2 expander

%{

  effect(DEF dst, USE src, USE shift);

  format %{ "$2    $dst, $src, $shift" %}

  ins_cost(INSN_COST * 3);

  ins_encode %{

    __ subw(rscratch1, zr, as_Register($shift$$reg));

    __ $3(as_Register($dst$$reg), as_Register($src$$reg),

    %}

  ins_pipe(ialu_reg_reg_vshift);

%}')dnl

define(`ROR_EXPAND', `

// $2 expander

%{

  effect(DEF dst, USE src, USE shift);

  format %{ "$2    $dst, $src, $shift" %}

  ins_cost(INSN_COST);

  ins_encode %{

    __ $3(as_Register($dst$$reg), as_Register($src$$reg),

    %}

  ins_pipe(ialu_reg_reg_vshift);

%}')dnl

define(ROL_INSN, `

%{

  match(Set dst (Or$1 (LShift$1 src shift) (URShift$1 src (SubI c$2 shift))));

  expand %{

    $3L_rReg(dst, src, shift, cr);

  %}

%}')dnl

define(ROR_INSN, `

%{

  match(Set dst (Or$1 (URShift$1 src shift) (LShift$1 src (SubI c$2 shift))));

  expand %{

    $3L_rReg(dst, src, shift, cr);

  %}

%}')dnl

ROL_EXPAND(L, rol, rorv)

ROL_EXPAND(I, rol, rorvw)

ROL_INSN(L, _64, rol)

ROL_INSN(L, 0, rol)

ROL_INSN(I, _32, rol)

ROL_INSN(I, 0, rol)

ROR_EXPAND(L, ror, rorv)

ROR_EXPAND(I, ror, rorvw)

ROR_INSN(L, _64, ror)

ROR_INSN(L, 0, ror)

ROR_INSN(I, _32, ror)

ROR_INSN(I, 0, ror)

// Add/subtract (extended)

dnl ADD_SUB_EXTENDED(mode, size, add node, shift node, insn, shift type, wordsize

define(`ADD_SUB_CONV', `

instruct $3Ext$1(iReg$2NoSp dst, iReg$2 src1, iReg$1orL2I src2, rFlagsReg cr)

%{

  match(Set dst ($3$2 src1 (ConvI2L src2)));

  ins_cost(INSN_COST);

  format %{ "$4  $dst, $src1, $5 $src2" %}

   ins_encode %{

     __ $4(as_Register($dst$$reg), as_Register($src1$$reg),

            as_Register($src2$$reg), ext::$5);

   %}

  ins_pipe(ialu_reg_reg);

%}')dnl

ADD_SUB_CONV(I,L,Add,add,sxtw);

ADD_SUB_CONV(I,L,Sub,sub,sxtw);

dnl

define(`ADD_SUB_EXTENDED', `

instruct $3Ext$1_$6(iReg$1NoSp dst, iReg$1 src1, iReg$1 src2, immI_`'eval($7-$2) lshift, immI_`'eval($7-$2) rshift, rFlagsReg cr)

%{

  match(Set dst ($3$1 src1 EXTEND($1, $4, src2, lshift, rshift)));

  ins_cost(INSN_COST);

  format %{ "$5  $dst, $src1, $6 $src2" %}

   ins_encode %{

     __ $5(as_Register($dst$$reg), as_Register($src1$$reg),

            as_Register($src2$$reg), ext::$6);

   %}

  ins_pipe(ialu_reg_reg);

%}')

ADD_SUB_EXTENDED(I,16,Add,RShift,add,sxth,32)

ADD_SUB_EXTENDED(I,8,Add,RShift,add,sxtb,32)

ADD_SUB_EXTENDED(I,8,Add,URShift,add,uxtb,32)

ADD_SUB_EXTENDED(L,16,Add,RShift,add,sxth,64)

ADD_SUB_EXTENDED(L,32,Add,RShift,add,sxtw,64)

ADD_SUB_EXTENDED(L,8,Add,RShift,add,sxtb,64)

ADD_SUB_EXTENDED(L,8,Add,URShift,add,uxtb,64)

dnl

dnl ADD_SUB_ZERO_EXTEND(mode, size, add node, insn, shift type)

define(`ADD_SUB_ZERO_EXTEND', `

instruct $3Ext$1_$5_and(iReg$1NoSp dst, iReg$1 src1, iReg$1 src2, imm$1_$2 mask, rFlagsReg cr)

%{

  match(Set dst ($3$1 src1 (And$1 src2 mask)));

  ins_cost(INSN_COST);

  format %{ "$4  $dst, $src1, $src2, $5" %}

   ins_encode %{

     __ $4(as_Register($dst$$reg), as_Register($src1$$reg),

            as_Register($src2$$reg), ext::$5);

   %}

  ins_pipe(ialu_reg_reg);

%}')

dnl

ADD_SUB_ZERO_EXTEND(I,255,Add,addw,uxtb)

ADD_SUB_ZERO_EXTEND(I,65535,Add,addw,uxth)

ADD_SUB_ZERO_EXTEND(L,255,Add,add,uxtb)

ADD_SUB_ZERO_EXTEND(L,65535,Add,add,uxth)

ADD_SUB_ZERO_EXTEND(L,4294967295,Add,add,uxtw)

dnl

ADD_SUB_ZERO_EXTEND(I,255,Sub,subw,uxtb)

ADD_SUB_ZERO_EXTEND(I,65535,Sub,subw,uxth)

ADD_SUB_ZERO_EXTEND(L,255,Sub,sub,uxtb)

ADD_SUB_ZERO_EXTEND(L,65535,Sub,sub,uxth)

ADD_SUB_ZERO_EXTEND(L,4294967295,Sub,sub,uxtw)

// END This section of the file is automatically generated. Do not edit --------------